Prusa Mini+ Making Endstop Clicking Sound on Z Axis
I noticed that my Mini+ had started making a clicking sound while printing after about the 2nd day of use. At first, I thought that it was the hot end but I noticed that it only makes the sound whenever it Z Hops, but not when I move the Axis up or down only while it is hopping. I tightened the Z-Axis motor and the bolts that attach the large bolt to the plastic pieces that move the X-Axis but the clicking is still there. It sounds almost exactly to an endstop you might find on an Ender 3 whenever the bed maxes out on the X, Y, or Z but I know that Prusa does not use end stops like these.
that click comes from the extruder during retraction, search in the forum, there is plenty of post about this
Sometimes bad (wet) filament can cause clicking noise (popping) while printing. Try to drying your filament and test again.